The area of trapezoid is a=1/2h(b1+b2) where A = area, h = height, and b1 and b2 = bases.

Yes, you are correct. The formula to calculate the area of a trapezoid is indeed A = 1/2h(b1+b2), where A represents the area, h represents the height, and b1 and b2 represent the lengths of the two parallel bases of the trapezoid.